Lubricator for windmills.



UNrrnD STATES` PATENT OFFICE.

EDWARD E. SWETT, OF PHILADELPHIA, PENNSYLVANIA.

LUBRICATORFOR WlNDNlILLS.

SPECIFICATION forming part of Letters Patent No. 660.472, dated October23, 1900.

Application filed AprilSO,1900. Serial No. 141347- (NO mdel-l To allwhom, it may concer-7e:

Be it known that I, EDWARD E. SwE'r'r, a citizen of the United States ofAmerica, and a resident of the city and county of Philadelphia, in theState of Pennsylvania, have invented certain new and useful Improvementsin Lubricators for Vindmills, of which the following is a speciiication.

My invention relates to a new and useful device for lubricatingmachinery, and is more especially designed for lubricating the variousparts of machines or devices located in elevated positions, such aswindmills, so as to avoid the danger incident to the operator climbingthe structure supporting the elevated machine.

My invention consists of certain details of construction by which agiven quantity of the lubricating material will be delivered to theworking parts of the machine at each operation of the controllingmechanism, as will hereinafter be fully described, and pointed out inthe claims.

Reference being had to the accompanying drawings, forming part of thisspeciiication, Figure l represents a vertical section of the deviceforming the subject-matter of my invention, showing the valve mechanismin a posiiion to deliver a charge of oil from the lubricator; and'Fig. 2illustrates an enlarged view of a portion of the valve and valve-chamberin a position to receive a charge of oil from the reservoir of thelubricator.

Referring to the letters of refereii'ce in the drawings, A represents anoil-reservoir, preferably spherical in shape, provided with asupply-pipe a, having a perforated cap a'. The reservoir is providedcentrally With a tube B, through which passes a stem C,adapt ed tooperate the valves C and C2. The tube B is provided at the bottom withtwo series of openings b and bthe upper series b forming passages whichadmit of the passage of the oil from the reservoir to the pipe B and thelower series b forming passages which admit of the passage of the oilfrom the tube to the chamber D. The chamber D has a conical bottom D andis provided at or near the same with a number of branches d d, which areprovided with flexible tubes d d to con- Vey the oil to the parts of themachine to be lubricated. The mechanism for controlling the valves C andC2 consists of a lever E, pivoted at a point e to a bracket F, whichlatter is firmly secured to the reservoir A. The lever E is connected tothe upper part of the stem C by means of a short connected rod G and isoperated upon by a spring H, which normally causes the valves C and C2to assume the position shown in Fig. 1.

In operating the device one end of the lever E is drawn down by means ofa long cord or rope l, which causes the lever to move against the actionof the spring H and move the valves C and G2 into the position shown inFig. 2, in which position the oil contained in the reservoir will passthrough the openings b b and occupy the space between the valves C/ andC2, the air contained therein escaping through a pipe J into theatmosphere. When the cord or rope I is released, the action of thespring will cause the lever E, valve-stem C, and valves C and G2 toassume the position shown in Fig. l, in which position the oil will passthrough the openings b b' into the chamber D and. from there through thebranches d CZ and tubes cl' d' to the parts to be lubricated.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s-

l. A lubricator comprising a reservoir, a tube extending through thesame provided with openings arranged respectively .aboveV and below thebottom of the reservoir, a carrier-valve composed of two pistonsarranged upon a valve-stem and adapted to control said openings andmeans as shown for operating the valve.

2. A lubricator comprising a reservoir, a tube extending through thesame provided with a series of openings communicating with thereservoir, a carrier-valve composed of two pistons arranged upon a valvestem within said tube, the upper piston 0f which is adapted to controlsaid openings, a second series of openings arranged below the reservoiradapted to be controlled by the lower piston of the valve and means asshown for operating the valve.

3. A lubricator comprising a reservoir, a tube provided with openingsarranged above and below the bottom of the reservoir, va chambercommunicating with the lower open- IOO ings provided with branches, acarrier-Valve Composed of tWo pistons arranged upon a Valve-stein Withinthe tube to control the openings and means as shown for operating thevalves.

4. Allubrieator comprising in combination a, reservoir, a, tubeextending through the same provided with openings arranged above and'below the bottom of the reservoir, a chamber Communicating With thelower openings, provided with a number of branches, an

escape-pipe communicating with said tube between the openings, a Valvein said tube composed of a pair of pistons, n Valve-stem, and a pivoredlever for operating the Valvestem substantially as speciied.

Signed at Philadelphia, Pennsylvania, this 16th day of April, 1900.

EDWARD E. SWETT. Witnesses:

FENTON H. MIDDLETON, WALTER W. CALMosE.

